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Doss [256]
3 years ago
7

Help NOW i am confuzzled

Mathematics
1 answer:
Zepler [3.9K]3 years ago
7 0

The angles A and B are alternate interior angles, and as such their measure is the same.

This leads to the equation

8x+6=4x+38

Subtract 4x and 6 from both sides to get

8x-4x = 38-6

which simplifies to

4x = 32

Plug this value for 4x in the expression for B to get

B = 4x+38 = 32+38 = 70

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Can 7:13 be simplified
gtnhenbr [62]

Answer:

no i don't think so

Step-by-step explanation:

7 0
3 years ago
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According to the empirical rule, 68% of 7-year-old children are between ___ inches and ___ inches tall.
AveGali [126]

Using the empirical rule 68% would fall within one standard deviation of the mean.

The standard deviation is given as 2 inches and the mean is 49 inches.

Since it is only one standard deviation find the lower number by subtracting the standard deviation from the mean and find the higher number by adding the standard deviation to the mean.

49 - 2 = 47

49 + 2 = 51


68% would be between 47 inches and 51 inches tall.

8 0
2 years ago
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I need it now please help
gulaghasi [49]
B. A smaller percentage of second-lunch students (38%) eat outside.
5 0
3 years ago
A market research firm knows from historical data that telephone surveys have a 36% response rate. In a random sample of 280 tel
Rasek [7]

Answer:

0.6604

Step-by-step explanation:

Given that a market  research firm knows from historical data that telephone surveys have a 36% response rate.

Sample size of random sample = 280

We know for samples randomly drawn of large size sample proportion follows a normal distribution with mean= sample proportin and std error

= \sqrt{\frac{pq}{n} }

Substitute p = 0.36 and q = 1-0.36= 0.64

p follows N with mean = 0.36 and std dev = \sqrt{\frac{0.36*0.64}{\sqrt{280} } } \\=0.0287

Using normal distribution values we can find\

P(33.5p.c. < p < 39pc)\\= P(0.335

3 0
2 years ago
Read 2 more answers
Find the area of this figure. use 3.14 for pi.​
Ganezh [65]
The square would be 100.
The semicircle you will use the formula πr^2/2.
That would mean you would take the 3.14x5^2/2.
(3.14x5x5)/2
(3.14x25)/2
78.5/2
=39.25
So the total area would be 139.25
7 0
3 years ago
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